My name is Crystal and my birth father, Hans, was also adopted in Stuttgart, Germany around the age of 5. He was born in April 1952. I dont know if there is a possibility of our fathers being related but I thought I would message you since we share a common goal of finding our parent's birth families. Do you have any more information on your father's biological family? I was told my father's mother had other children but couldnt take care of all of them. Her name may have been Hildegard (sp?) and could have possibly been working as a book binder or in a similar profession. We were given a possible last name of Codec or similar spelling. I can not verify any of this information though.